321112011012 has 48 divisors (see below), whose sum is σ = 809896570560. Its totient is φ = 98436382848.

The previous prime is 321112010953. The next prime is 321112011013. The reversal of 321112011012 is 210110211123.

It is a super-2 number, since 2×321112011012² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321112010982 and 321112011000.

It is not an unprimeable number, because it can be changed into a prime (321112011013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3784078 + ... + 3868005.

It is an arithmetic number, because the mean of its divisors is an integer number (16872845220).

Almost surely, 2^321112011012 is an apocalyptic number.

It is an amenable number.

321112011012 is an abundant number, since it is smaller than the sum of its proper divisors (488784559548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321112011012 is a wasteful number, since it uses less digits than its factorization.

321112011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7652372 (or 7652370 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 321112011012 its reverse (210110211123), we get a palindrome (531222222135).

The spelling of 321112011012 in words is "three hundred twenty-one billion, one hundred twelve million, eleven thousand, twelve".